Tezzeret the Seeker [Shards of Alara] SM174 you can Special Summon this

you can Special Summon this card (from your hand)

Set: HeartGold & SoulSilver: Undaunted Type: Fighting Rarity: Rare Retreat cost: Colorless

When this card is Special Summoned: You can target 1 face-up Attack Position monster your opponent controls

then activate the appropriate effect

Set: Order of Chaos Card type: Xyz/Effect Monster Rarity: Ultra Rare Attack: 2400 Defense: 1700 2 Level 5 monsters // Once per turn

Tezzeret the Seeker [Shards of Alara] SM174 you can Special Summon thisSet: Shards of Alara Type: Legendary Planeswalker Tezzeret Rarity: Mythic Cost: {3}{U}{U} +1: Untap up to two target artifacts. X: Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle. 5: Artifacts you control become artifact creatures with base power and toughness 5 5 until end of turn.